Vulnerability Instance

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{
    "url": "http://public2.vulnerablecode.io/api/vulnerabilities/94971?format=api",
    "vulnerability_id": "VCID-yqam-kpce-dfg7",
    "summary": "WordPress before 5.8 lacks support for the Update URI plugin header. This makes it easier for remote attackers to execute arbitrary code via a supply-chain attack against WordPress installations that use any plugin for which the slug satisfies the naming constraints of the WordPress.org Plugin Directory but is not yet present in that directory.",
    "aliases": [
        {
            "alias": "CVE-2021-44223"
        }
    ],
    "fixed_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/943026?format=api",
            "purl": "pkg:deb/debian/wordpress@5.8.1%2Bdfsg1-1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@5.8.1%252Bdfsg1-1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/995233?format=api",
            "purl": "pkg:deb/debian/wordpress@6.1.9%2Bdfsg1-0%2Bdeb12u1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-gyaq-8pvh-p7gg"
                },
                {
                    "vulnerability": "VCID-jghn-eujf-zbdn"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@6.1.9%252Bdfsg1-0%252Bdeb12u1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/942925?format=api",
            "purl": "pkg:deb/debian/wordpress@6.1.9%2Bdfsg1-0%2Bdeb12u1?distro=trixie",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-gyaq-8pvh-p7gg"
                },
                {
                    "vulnerability": "VCID-jghn-eujf-zbdn"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@6.1.9%252Bdfsg1-0%252Bdeb12u1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/942929?format=api",
            "purl": "pkg:deb/debian/wordpress@6.8.3%2Bdfsg1-0%2Bdeb13u1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@6.8.3%252Bdfsg1-0%252Bdeb13u1%3Fdistro=trixie"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/942928?format=api",
            "purl": "pkg:deb/debian/wordpress@6.9.4%2Bdfsg1-1?distro=trixie",
            "is_vulnerable": false,
            "affected_by_vulnerabilities": [],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@6.9.4%252Bdfsg1-1%3Fdistro=trixie"
        }
    ],
    "affected_packages": [
        {
            "url": "http://public2.vulnerablecode.io/api/packages/995232?format=api",
            "purl": "pkg:deb/debian/wordpress@5.7.11%2Bdfsg1-0%2Bdeb11u1",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-4g2n-5v12-yuff"
                },
                {
                    "vulnerability": "VCID-532z-9qbb-dyfw"
                },
                {
                    "vulnerability": "VCID-gyaq-8pvh-p7gg"
                },
                {
                    "vulnerability": "VCID-jghn-eujf-zbdn"
                },
                {
                    "vulnerability": "VCID-m8mf-t2td-67h7"
                },
                {
                    "vulnerability": "VCID-yqam-kpce-dfg7"
                },
                {
                    "vulnerability": "VCID-zj9a-shru-e7gs"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@5.7.11%252Bdfsg1-0%252Bdeb11u1"
        },
        {
            "url": "http://public2.vulnerablecode.io/api/packages/942927?format=api",
            "purl": "pkg:deb/debian/wordpress@5.7.11%2Bdfsg1-0%2Bdeb11u1?distro=trixie",
            "is_vulnerable": true,
            "affected_by_vulnerabilities": [
                {
                    "vulnerability": "VCID-gyaq-8pvh-p7gg"
                },
                {
                    "vulnerability": "VCID-jghn-eujf-zbdn"
                },
                {
                    "vulnerability": "VCID-yqam-kpce-dfg7"
                }
            ],
            "resource_url": "http://public2.vulnerablecode.io/packages/pkg:deb/debian/wordpress@5.7.11%252Bdfsg1-0%252Bdeb11u1%3Fdistro=trixie"
        }
    ],
    "references": [
        {
            "reference_url": "https://api.first.org/data/v1/epss?cve=CVE-2021-44223",
            "reference_id": "",
            "reference_type": "",
            "scores": [
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.96388",
                    "published_at": "2026-04-01T12:55:00Z"
                },
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.96395",
                    "published_at": "2026-04-02T12:55:00Z"
                },
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.96399",
                    "published_at": "2026-04-04T12:55:00Z"
                },
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.96402",
                    "published_at": "2026-04-07T12:55:00Z"
                },
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.96411",
                    "published_at": "2026-04-08T12:55:00Z"
                },
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.96414",
                    "published_at": "2026-04-09T12:55:00Z"
                },
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.96419",
                    "published_at": "2026-04-11T12:55:00Z"
                },
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.9642",
                    "published_at": "2026-04-12T12:55:00Z"
                },
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.96423",
                    "published_at": "2026-04-13T12:55:00Z"
                },
                {
                    "value": "0.27489",
                    "scoring_system": "epss",
                    "scoring_elements": "0.9643",
                    "published_at": "2026-04-16T12:55:00Z"
                }
            ],
            "url": "https://api.first.org/data/v1/epss?cve=CVE-2021-44223"
        },
        {
            "reference_url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44223",
            "reference_id": "",
            "reference_type": "",
            "scores": [],
            "url": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-44223"
        }
    ],
    "weaknesses": [],
    "exploits": [],
    "severity_range_score": null,
    "exploitability": "0.5",
    "weighted_severity": "0.2",
    "risk_score": 0.1,
    "resource_url": "http://public2.vulnerablecode.io/vulnerabilities/VCID-yqam-kpce-dfg7"
}